National Weather Service Forecast for: Shelby MT
Issued by: National Weather Service Great Falls, MT
Updated: 12:41 pm MDT Jul 28, 2026
 
This
Afternoon
This Afternoon: Patchy smoke. Sunny, with a high near 93. South wind around 10 mph, with gusts as high as 20 mph.
Patchy Smoke

Tonight

Tonight: Areas of smoke. Mostly clear, with a low around 57. Southwest wind 7 to 13 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Areas Smoke

Wednesday

Wednesday: Patchy smoke. Sunny, with a high near 91. Northwest wind 5 to 7 mph becoming light and variable.
Patchy Smoke

Wednesday
Night
Wednesday Night: Areas of smoke. Mostly clear, with a low around 57. West northwest wind 3 to 8 mph.
Areas Smoke

Thursday

Thursday: Patchy smoke before 7am. Sunny, with a high near 92. West southwest wind 3 to 5 mph.
Patchy Smoke
then Sunny

Thursday
Night
Thursday Night: A 20 percent chance of showers after midnight.  Mostly clear, with a low around 57. West wind 5 to 9 mph becoming light south southwest.
Mostly Clear
then Slight
Chance
Showers
Friday

Friday: Sunny, with a high near 95. West wind 6 to 10 mph, with gusts as high as 21 mph.
Sunny

Friday
Night
Friday Night: Clear, with a low around 58. West wind 8 to 13 mph becoming light  after midnight. Winds could gust as high as 21 mph.
Clear

Saturday

Saturday: Sunny and hot, with a high near 99.
Hot

Hi 93 °F Lo 57 °F Hi 91 °F Lo 57 °F Hi 92 °F Lo 57 °F Hi 95 °F Lo 58 °F Hi 99 °F

Air Quality Alert
 

This Afternoon
 
Patchy smoke. Sunny, with a high near 93. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
 
Areas of smoke. Mostly clear, with a low around 57. Southwest wind 7 to 13 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Wednesday
 
Patchy smoke. Sunny, with a high near 91. Northwest wind 5 to 7 mph becoming light and variable.
Wednesday Night
 
Areas of smoke. Mostly clear, with a low around 57. West northwest wind 3 to 8 mph.
Thursday
 
Patchy smoke before 7am. Sunny, with a high near 92. West southwest wind 3 to 5 mph.
Thursday Night
 
A 20 percent chance of showers after midnight. Mostly clear, with a low around 57. West wind 5 to 9 mph becoming light south southwest.
Friday
 
Sunny, with a high near 95. West wind 6 to 10 mph, with gusts as high as 21 mph.
Friday Night
 
Clear, with a low around 58. West wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 21 mph.
Saturday
 
Sunny and hot, with a high near 99.
Saturday Night
 
Mostly clear, with a low around 59. Windy.
Sunday
 
Sunny, with a high near 80. Breezy.
Sunday Night
 
Mostly clear, with a low around 48. Breezy.
Monday
 
Sunny, with a high near 74.

 

Forecast from NOAA-NWS for Shelby MT.